Osmo Skytta
Ostendorf Ward W.
Osterberg Lars
Osterberg Lars B.
Ostman Kauko Antero
Ostman Thomas L.
Ota Toyokazu
Otis R. Witworth
Ottelin Esa
Ouchi Takashi
Ovaska Juhani
Overly Wm. F.
Overly Inc.
Oxley Frank
Oy Nokia Ab
Oy Wilh. Schauman Ab
Oyakawa Danilo
Oyakawa Davilo